Espar / Eberspacher Airtronic D5 12V Electronic Control Unit (ECU)
Sold by Heatso US
Supplier price US$409.99
Heatso US's price when we last checked, on 24 October 2026. They run promotions and price by variant, so confirm the current price on their page before you buy.
Buy at Heatso US (opens Heatso US in a new tab)US supplier offer. Choose the exact model and configuration at Heatso; confirm current price, compatibility, stock and delivery.
This is an affiliate link. Heatso US takes your order, payment and delivery — Roam Wired is not the seller. If you buy through it we may earn a commission, at no extra cost to you. How we make money
How buying this works
Roam Wired does not stock this item. Buy directly from the supplier using the affiliate link above. The supplier takes your order and payment and arranges delivery. Nothing is added to a Roam Wired basket.
We may earn a commission if you buy through our link, at no extra cost to you.
Delivery and returns
The supplier sets delivery charges, service areas, delivery times and return conditions. Check the current terms on their website before you order. Roam Wired's own delivery and returns policy does not apply to affiliate purchases.
Warranty and support
Warranty claims, refunds and order support are handled by the supplier who takes your order. Check the exact model's warranty and installation requirements before buying.
Overview
Espar / Eberspacher Airtronic D5 12V Electronic Control Unit (ECU)
Espar / Eberspacher Airtronic D5 12V Electronic Control Unit (ECU) is available from Heatso for US van and RV builds. Use the specifications and fitment details below to compare this listing with the equipment in your conversion.
Published specifications
| Supplier | Heatso US |
|---|---|
| Price currency | USD |
| Voltage | 12V |
| Part Numbers | 225101004103; 22.5101.00.4103 / 22.5101.00.41.03; 22 5101 00 4103 / 22 5101 00 41 03 |
Model and kit notes
- Suitable for service work on vehicles, boats, trucks, equipment, and off-grid builds fitted with the correct Airtronic D5 heater
- Part Numbers: 225101004103; 22.5101.00.4103 / 22.5101.00.41.03; 22 5101 00 4103 / 22 5101 00 41 03
- This ECU is listed for the Espar / Eberspacher Airtronic D5 12V heater with heater number 252361050000. Always confirm your heater label and part number before ordering.
- This listing is for a 12V electronic control unit. It should not be used on a 24V heater unless compatibility is confirmed by the correct Eberspacher / Espar part number.
Match the part before ordering
This is an installation or service component. Match the exact heater family, generation, voltage, connector and manufacturer part number. Similar-looking parts can have different ratings or pinouts. An individual component does not constitute a complete installation kit or an independently powered appliance.
Calculator and installation
The available supplier information is saved with this product. Automatic energy or component selection is withheld where the exact voltage, electrical input or required operating limits are unconfirmed; these are not recorded as zero.
Buying through Roam Wired
Heatso takes your order, payment and delivery and handles returns and warranty support. Confirm the current supplier price, availability and compatibility. Roam Wired may earn a commission through the buying link at no extra cost to you.
Specifications and documents
Manufacturer specifications
Published figures for the model shown. Check dimensions, voltage, installation instructions and current specifications with the supplier before ordering.
Heatso · United States
Plan with the exact model
Check the published specifications and supplier options above. Products with unresolved electrical input, voltage or operating limits are withheld from automatic calculator selection. Accessories are not assigned a fabricated zero-watt load.
Plan your US electrical system
Exact listing and documents
Heatso specification, options & current availability ↗
The calculator uses a 12V DC / 120V AC planning model. A 24V or 48V product, or a non-US AC configuration, needs a separately checked design.